Ubuntu System and Network Administrator

Monday, November 26, 2012

First
select one photo of your image to put in logon screen, it should be
dimension 800*600 pixels size 70.2 (appromimatley) and save in JPEG
imag mode and give your photo name as backgrounddefault and put it in
pictures place

What
is Ubuntu Tweak :- Ubuntu Tweak is an application designed to config
Ubuntu easier for everyone. It provides many useful desktop and
system options that the default desktop environment doesn't provide.
At present, it's only designed for the Ubuntu GNOME Desktop, and
always follows the newest Ubuntu distribution.

LICENSE

Ubuntu
Tweak is a free software, which means you can redistribute it and/or
modify it under the terms of the GNU General Public License published
by the Free Software Foundation.

Tuesday, June 12, 2012

What is Guest
Session:-The Ubuntu Guest
Session feature provides a convenient way, with a high level of
security, to lend your computer to someone else. A guest cannot view
the home folders of other users, and by default any saved data or
changed settings will be removed/reset at logout. It means that each
session starts with a fresh environment, unaffected by what previous
guests did.

Want to disable the
guest account from showing up on the logon screen?
Ubuntu 12.04 comes with a guest account that can be used by guests to
access the system.

First
open terminal (Ctrl+Alt+T)

and
than type this command on the terminal sudo gedit
/etc/lightdm/lightdm.conf

now
give system password and press enter.

You
will get Text editor in that you will see this lines

[SeatDefaults]

greeter-session=unity-greeter

user-session=ubuntu

now
you add this line allow-guest=false

at
the bottom of the file like this

[SeatDefaults]

greeter-session=unity-greeter

user-session=ubuntu

allow-guest=false

now save the file and restart

after
restart you will see there is no Guest Session on the logon screen.

Thursday, June 7, 2012

what is
preload application:- Preload is nice little application
that could make your linux system a lot faster. Preload is an
adaptive readahead daemon. It monitors applications that users run,
and by analyzing this data, predicts what applications users might
run, and fetches those binaries and their dependencies into memory
for faster startup times.

Preload packages are available for almost all
linux distributions. And it is available by default in the Synaptic
Package Manager and Ubuntu Software Center in Ubuntu. Alternatively,
you can install it via Terminal. Type this command

sudo apt-get install preload

Thats it.
Preload will run silently in the background. If you want to further
tweak Preload, conf file is available at /etc/preload.conf.

Note that
installing preload will not make your system boot faster and that
preload is a daemon that runs with root privileges.

Saturday, March 31, 2012

What is TeamViewer:- it is a remote control application. Team Viewer provides easy, fast and secure remote access to Linux, Windows PCs, and Macs.
Team Viewer is free for personal use. You can use Team Viewer completely free of charge to access your private computers or to help your friends with their computer problems.
To download Team Viewer for Ubuntu System go to this URLhttp://www.teamviewer.com/en/download/index.aspx
Select open with Ubuntu Software Centre (default)
After downloading is completed you will see Ubuntu Software Centre box in that just press Install Button.
Now you will get Authenticate box just give your system password
After installation is over now you go to Dash Home and type Team Viewer and open that one
After opening Team viewer you will get Team Viewer License Agreement in that you will press Accept License Agreement Button
After that you will see Team Viewer box in that Left side Your ID XXX XXX XXX
And Password XXXX
Right side you have to type Partner ID and press Connect button to connect your Partner system and enjoy
To setup Team viewer to start up every time you login
Go to start up applications
Click “Add”
Now you will see a box called Add Startup Program box
Now In Name place Type Start Team viewer
In Command place type /usr/bin/teamviewer
And now press Add button
And press close button.
After you restart Team viewer will open automatically
Do it same and enjoy
Allu John Sudhakar
System/Network Administrator
to see my Blogger (for Ubuntu)http://allujohnsudhakar.blogspot.com
any help mail to me aj_sudhakar@yahoo.co.in

Friday, August 5, 2011

Chkconfig is a utility to update and query runlevel information for system services. Chkconfig manipulates the numerous symbolic links in /etc/init.d/, to relieve system administrators of some of the drudgery of manually editing the symbolic links.

In Debian, there are several tools with similar functionality, but users coming from other Linux distributions will find the tools in this package more familiar.

Go to Terminal and open it and type the command “chkconfig' press enter.

john@john:~$ chkconfig

The program 'chkconfig' is currently not installed. You can install it by typing: